<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>first-letter-line</title>
    <style type="text/css">
        p.fletter::first-letter{
            font-size: 200%;
            font-family: "楷体";
            color: #f00;
            float: left;
        }
        p.fline::first-line{
            font-size: 200%;
            font-family: 楷体;
            color: #f00;
        }
    </style>
</head>
<body>
<p class="fletter">伪元素用于将特殊的效果添加到某些选择器。伪元素只用于特定对象上。</p>
<p class="fline">伪元素用于将特殊的效果添加到某些选择器。伪元素只用于特定对象上。</p>
</body>
</html>